Fairies (妖精, yousei) are inhabitants of another world, separate from both spirits and fiends. Descriptions of them vary amongst different traditions. Some liken them to young winged girls, while others characterize them as small people. A number of believers also portray them as being represented by small animals. One thing they all have in common, however, is that they enjoy pulling pranks on people.
Thus far, fairies have only been mentioned in Erebonian Folklore.